Plastics

1. Write down all the nouns from the text in plural.

2. Complete the table (pay attention to degrees of comparison):

	lower
hard
	longer
important
brittle
	higher
strong
success ful
light
large

3. Make the following sentences negative and put into the interrogative:

• Many new materials become familiar to us over centuries.

• Glass is transparent and strong in some ways.

• Plastic materials are found as such in nature.

• Plastics have other things in common.

• Plastics rust.

• Plastics have found wide application both in everyday life and in industry.

• Plastics as a material for construction are used in the form of sheets, rods or tubes.

• Today all plastic gears for machinery are made from fabric base laminates.

• The large range of decorative plastics laminates now available to the architect.

• A builder has brought about a revolution in interior and exterior design,

• Many disadvantages have had to be overcome in the development of decorative laminates.

4. Write down all irregular verbs and their three forms.

5. Find all the sentences from the text in the Passive Voice. Copy them in your exercise-books.

6. find all the sentences from the text in the Present Perfect. Copy them in your exercise-books.

7. Make notes about advantages of plastics.

Get talking

1. Work in pairs. Discuss:

a) history of a laminate;

2. advantages of plastics;

3. history of plastics.

Your talks should include between 10—20 phrases.

2. Give a summary of the paragraph "Foamed plastics".

3. Imagine: You are an engineer of a chemical plant. Give your talk about "Reinforced Plastics⁴'. Your talk should last a minute.

Lesson 56

The plastic house for tomorrow

1. Complete the following words from the text:

an ar_it_с , a de rtm t, a s oo_, a h_u_e, a m_eri_l, a s_st_m, a c_ea_ion, a sze, a shae, a w_ _1, a s_ndw_hes, a s_rf_ _e, a f__tu_e, a su_rou_d__g, an _re_, a li_h_,a s__ce, a f_el_ _ng, an eng_ne_r, a sk_lel_n, a f_oor, a d_sig_ _r, a fr_mew_rk, a sp__ng, a pr_bl_m, a p ces, a d__mens_on_.

2. Write down ail the nouns from the text in plural.

3. Write down all irregular verbs and their three forms.

4. Write the following words in the correct order to make sentences and translate them into Russian.

• Be, spiral, compressed, framework.

• To, ideas, mind, other, come.

• The, be, sandwiches, will, giant, walls, curved.

• Will, the, this, features, house, embody.

• Another, is, example, a, house, beautiful.

5. Make the following sentences negative and put into the interrogative:

• • Young architects are dreaming up tomorrow's houses today.

• One such house was designed with the help of research material by a graduate of this school.

• The walls will be giant curved sandwiches.

• This house will embody the features.

• The huge glass areas will admit lots of light.

• The floor is concrete.

• The entire structure would rest on pieces of curved recast masonry.

• Thus would be solved the problem of manufacturing large pieces of house that are still transportable.

• The system is based on cast plastic bubbles linked together,

• Another house is a beautiful example of what engineers like to call "blue sky thinking".

Get talking

1. Imagine your own plastic house for future. Give your talk about this project. Your talk should last a minute.

Lesson 56-57